drill steel


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drill steel

[′dril ‚stēl]
(metallurgy)
Steel with at least 0.85% carbon content made by the electric furnace process. Formerly known as crucible steel, when made by the crucible process.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
* Never manually thread the drill steel while the drill head rotates.
One of the major improvements in the standard is the revised requirement to better protect operators and other personnel from the entanglement hazard caused by the rotating drill steel. Sandvik's solution to this requirement was to develop and install a safety cage around the feed beam.
An option is to use a normal hydraulic drill hammer with an automatic drill steel handling system.
(21.33 m) deep using 68-mm-diameter drill rod, commonly called drill steel. The bit can last 1,100 to 1,200 ft.